ABSTRACT There is provided an apparatus and method of filleting and cleaning a cephalopod, including squid. The apparatus for use in filleting a cephalopod including, a body having a first end being shaped for insertion into a cavity of a mantle of said cephalopod and a second end graspable by a user, a cutting member 5 located at, or adjacent, said first end, for severing an internal membrane of said cephalopod, a guide located adjacent said cutting member, wherein upon insertion of said first end in through an opening of said mantle, the guide acts to constrain the movement of the cutting member such that it is directed along a junction between said internal membrane and an inner surface of said mantle, to thereby detach the 10 internal membrane therefrom, wherein the mantle is inhibited from being perforated by said cutting member.